Yes it is correctly shown but the actual reason is as follows.
The default post processor scaling for small deflection (linear) is making the largest calculated movement equal to 10% of the model size with all smaller movements scaled accordingly. This is so that we can actually see the movement because the real movement will be microstrain and otherwise invisible.
Your loaded end moves more and therefore scaling makes it look like it is 'exploding'.
The X&Y components of the tangential movement become exagerrated.
Careful interpretation of such images is required with this 'limitation' in mind.
Check. Measure the movement X & Y of any point on the circumference*
Set the deflection scaling to '1' and deselect '%'. This will give you actual movement and is likely invisible to the eye.
I suspect the strain is small enough that small defelction (linear) is ok initially.
*Sadly we cannot combine X&Y in the post processor therefore we must measure and manually calculate the numbers we want. With such models it is always prudent to put a radial csys in BEFORE running such that the results can be shown it the radial csys rather than the cartesian. Unfortunately Simulate throws the solution away when the solve is completed and the addition of another csys after a solve means a complete re-run.
Using a radial csys will not change the visual scaling; the end still 'explodes'
LDA & contact default (which can be changed by the user) post processor scaling is '1' absolute (and not '10%' model size).
